Railway motoe truck



2 Sheets-Sheet 1.

(No Model.)

0. W. HUNT.

RAILWAY MOTOR TRUCK.

Patented Mar 20, 1888.

N. PLIERS, Phol lilhogriphon Wuhinginn. D c.

(No Model.) 2 Sheets-Sheet 2.

' C. W. HUNT.

RAILWAY MOTOR TRUCK.

No. 379,786. Patented Mai. 20, 1888.

N. PETERS, Phom-Lllhogrnphqr. )Nnihmglon 0.0

UNITED STATES PATENT OFFICE,

CHARLES \V. HUNT, OF \VEST NEI/V BRIGHTON, ASSIGNOR TO THE C. IV. 'HUNTCOMPANY, OF NEYV YORK, N. Y.

RAILWAY-MOTOR TRUCK.

SPECIFICATION forming part of Letters Patent No. 379,786, dated March20, 1888.

Application filed December 7, 1887. Serial No. 257,260.

To all whom it may concern:

Be it known that I, CHARLES W. HUNT, of Vest New Brighton, in the countyof Rich mond and State of New York, have invented an Improvement inMeans for Driving Railway-Motors, of which the following is aspecification.

Electric motors and engines of various kinds have been used as a sourceof power in propelling railway-trains, and gearing of various forms hasintervened between the power and the wheels. In almost all instances theaxles of the drivingwvheels have been in bearings fixed to the frame ofthe locomotive or motor, and hence difficulty has arisen in running overshortradius curves, especially such as exist in elevated railways and inthe yards of coal com anies cuarries 8:0.

My present invention is made for applying the motive power to the fourwheels of a swiveling truck, so that said truck can accommodate itselfto the track without interfering with the action of the motor.

In the drawings, Figure 1 is a vertical sec tion of the truck and anoutline of the car, illustrating rnyimprovement; and Fig. 2 is asectional plan view of the tubular king-bolt and truck at the line mac,Fig. 1; and Fig. 3 is a section illustrating a modification in thearrangement of the pulleys.

The truck is made with the wheels at a, axles b b, and with any suitablejournal-boxes, c, and frames d, that connect them, and there is across-bearer, e. In some kinds of motors there will be springs betweenthe journal-boxes and the frames or bearers, or these springs may beomitted, as the parts thus far named may be of any desired character.

A portion of the car-platform is shown atf, and the inclosure for thecar may be of whatever form or character is best adapted to thedynamo-electric motor, engine, or other source of power that may be madeuse of.

The king-bolt is preferably made of short tubes or rings, so that thetwo parts of the driving-belt h pass through the same. This belt h maybe of rubber, leather, or other material, or of a chain with flat orother suitable links, and it is endless and passes from'a drum orpulley, k, that is actuated by suitable power, down through the open ortubular king-bolt,

(No model.)

below the guide-pulleys Z a, and around the pulleys m 0 upon the shaftsor axles b b of the truck-wheels a a, so as to propel both pair of truck-wheels; but if it is desired to propel but one pair of truck-wheels thebelt may be led as shown in Fig.

In order to make the tubular king-bolt, it is preferable to fasten theflanged cylinder p to the car-platform and the flanged cylinder 1' tothe truck-bolster, the cylinder 19 surrounding the cylinder '2', so thatthe guide-pulleys Z m may be within the cylinder r, and hence the twoparts of the belt will be adjacent to the axes of motion as the truckswivels, and the cylinder 1' turns with it when running upon a curve,and in this movement the belt will not be tightened or loosenedmaterially and will maintain the proper tension, because the belts willonly be partially twisted from the straight parallel planes of motionwhere the motor is on a straight track, and the rise and fall of thecar-platform on the springs will have but little effect on the belt,because it passes nearly horizontally between the pulleys, and the riseor fall of such pulleys in relation to each other varies but little thedistances between the respective points of contact of the belts with thepulleys.

It will be apparent by reference to Fig. 3 that the belt h may extendonly around the pulley 0, the second guide-roller, 1, being below theguide-roller a, so that the belts may passv off horizontally, or nearlyso, to prevent the belt being materially lengthened or shortened as thecar rises and falls with the springs.

Although the tubular king-bolt is more re liable than an ordinaryking-bolt, I have shown in Fig. 3 the belts passing nearly togetherthrough a mortise in the floor and at one side of the solid king-bolt,which latter may be of any desired construction.

I claim as my invention 1. The combination, with the truek-whecls andaxles, of a tubular king-bolt, a belt passing through the same andguide-pulleys, and a pulley on one of the axles and driven by the belt,substantially as set forth.

2. The combination, with the two pairs of truck-wheels and axles, ofpulleys on the axles, a tubular king-bolt and guide-pulleys, and a beltpassing through the tubular king-bolt, be-

tween the guide-pulleys, and around the pulthe king-bolt, so that thelead of the beltis but leys on the axles, substantially as set forth.slightly varied by the swinging of the truck,

3. The combination, with truck-wheels and substantially as set forth.

axles, of a pulley on one of the axles, guidei Signed by me this 26thday of November, 5 'fpulleys, and a belt passing nearly horizontally1887.

rom the pulley on the axle to the guide-pulleys, so as not to bematerially tightened or CHAS HUNT slackened by the motion of the car onthe Witnesses:

springs, and thence the belt passes vertically GEO. T. PINOKNEY, i 1

IO and close to the axis of motion of the truck on WILLIAM G. Mom.

